<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>HTML练习</title>
		<style>
			div {
				border: 1px solid blue;
				/* display: inline; */
			}
			span{
				border: 1px solid olive;
				/* display:block ; */
				display: inline-block;
				width: 200px;
			}
		</style>
	</head>
	<body>
		<div>
			青青子衿<br>
			青青子衿
		</div>
		<div>
			悠悠我心
			<span>呦呦鹿鸣</span>
			<span>食野之苹</span>
		</div>
		<pre>
				if(a>b){
					yes;
				}
		</pre>
	</body>
</html>
